However, in the establishment of accounting principles it is difficult to anticipate all of the circumstances to which such principles might be applied. This rule therefore recognizes that upon occasion there may be unusual circumstances where the literal application of pronouncements on accounting principles would have the effect of rendering financial statements misleading. In such cases, the proper accounting treatment is that which will render the financial statements not misleading.

The question of what constitutes unusual circumstances as referred to in rule 203 [ET section 203.01] is a matter of professional judgment involving the ability to support the position that adherence to a promulgated principle would be regarded generally by reasonable men as producing a misleading result.

Examples of events which may justify departures from a principle are new legislation or the evolution of a new form of business transaction. An unusual degree of materiality or the existence of conflicting industry practices are examples of circumstances which would not ordinarily be regarded as unusual in the context of rule 203 [ET section 203.01].

.03 203-2Status of FASB and GASB interpretations. Council is authorized under rule 203 [ET section 203.01] to designate bodies to establish accounting principles. Council has designated the Financial Accounting Standards Board (FASB) as such a body and has resolved that FASB Statements of Financial Accounting Standards, together with those Accounting Research Bulletins and APB Opinions which are not superseded by action of the FASB, constitute accounting principles as contemplated in rule 203 [ET section 203.01]. Council has also designated the Governmental Accounting Standards Board (GASB), with respect to Statements of Governmental Accounting Standards issued in July 1984 and thereafter, as the body to establish financial accounting principles for state and local governmental entities pursuant to rule 203 [ET section 203.01].

In determining the existence of a departure from an accounting principle established by a Statement of Financial Accounting Standards, Accounting Research Bulletin or APB Opinion encompassed by rule 203 [ET section 203.01], or the existence of a departure from an accounting principle established by a Statement of Governmental Accounting Standards encompassed by rule 203 [ET section 203.01], the division of professional ethics will construe such Statements, Bulletin or Opinion in the light of any interpretations thereof issued by the FASB or the GASB.

Rule 203 [ET section 203.01] applies to all members with respect to any affirmation that financial statements or other financial data are presented in conformity with GAAP. Representation regarding GAAP conformity included in a letter or other communication from a client entity to its auditor or others related to that entity's financial statements is subject to rule 203 [ET section 203.01] and may be considered an affirmative statement within the meaning of the rule with respect to members who signed the letter or other communication; for example, signing reports to regulatory authorities, creditors and auditors.